On September 18, the Manchurian Incident brought Japan to the north as a military victory in the Northeast China and made the region into a colony of Manchukuo, It was called an affair and did not declare war. This war, which was enlarged by military action caused by the Japanese forces in the Luoguchi Chao in the suburbs of Beijing on July 7, 1937, is clearly an extension of the Manchurian Incident, Or ‘Gina Chang (change of state)’. This was the policy footing of the Japanese government, which promoted a sense of despair that seemed not to recognize China as a nation after the Sino-Japanese War, and falsified military action against China as if it were a project of “Asian innovation.” After the Luigi Chao incident, Japan occupied Beijing and Tianjin, expanded the war to Shanghai, and in December 1937 occupied Nanjing, the capital of the Republic of China, and slaughtered hundreds of thousands of citizens.
On the other hand, the Chinese side formed anti-Japanese national unification front with the second national-government cooperation of the Nationalist Party and the Communist Party. According to the guerrilla warfare of the Chinese army, the Japanese army was only to maintain the ‘point (city) and the line’ on the wide front. In the meantime, the Japanese military killed 12 million Chinese people during the entire period of war through brutal acts such as the Samkwang Operation (Sanko Sectors) To give. Japan mobilized millions of large armies and all modern weapons, while establishing a puppet regime, such as Prince Osamu, to carry out the war, but failed to defeat the will of the Chinese people and the war was prolonged. Japan tried to find a breakthrough by expanding it to the Pacific War for breakthrough, but it made the situation worse. Thus, the war between China and Japan became part of the Pacific War, but the morale of the Japanese army was lowered and the military disrupted, and the military force of 1.05 million was already nailed to the Chinese front line, which had already become the second line With the acceptance of the Potsdam Declaration on August 15, 1945, he was surrendered to the Republic of China without fail.